Lock structure



Oct. 19 1926.

S. M. ARCHER LOCK STRUCTURE Filed July 1'7 @Noem Patented Oct. 19, 1926.

UNETE. STATES .Parser asics.' i

SYLVANUS M. ARCI-IER, OF STAMFORD, CONNECTICUT, ASSIGNOR TO THE YALE &

` TOWNE MANUFACTURING COMPANY, 0F STANFORD, CONNECTICUT.

LOCK STRUCTURE.

Application led July 17, 1923. Serial No. 652,146.

This invention relates to improvements in lock structures and more particularly to an improved door and lock construction for sate deposit boxes.

Vith the-usual installation of cylinder locks in sate deposit box doors, it has been possible, by driving against the nose or cylinder of the lock, to drive the Whole lock including the bolt-Work from the inside of the door and thus give access to the box by reason of the tact that all the bolt mechanism was contained in a lock case secured to the inner tace ot' the door.

One object of my present invention is to overcome the objections to prior constructions and to so install the lock mechanism that the entire bolt-Work shall be mounted within the plate constituting the door of a sate deposit box, the casing on the inner 'lace of the door serving simply to house the coupling means between the bolt-Work and cylinders, and thus render it exceedingly dillicult or practically impossible to reach around and operate the bolt or bolts should one or both ot' the cylinder locks be disabled and the casing member driven from the door.

deposit box 'door (the inner casing or housing member being shown removed), illustrating an embodiment of my invention.

Figure 2 is a longitudinal sectional vieW.

Figure 3 is a transverse sectional view.

Figures 1, 5 and 6 shovv modifications.

In the present instance, the sate deposit box door consists of a block 1 preferably of steel and it may, it desired be provided With a face plate 2 ot a different 1netal,-such as brass :tor example.

The block or door 1 is provided in its rear face with a transverse recess 3 and with this recess a seat or seats, preferably two as shown at 1 and 5, communicate and extend to the end of said block or door. rlhe seat or seats in the body of the block or door 1 are for the accommodation orn the bolt or bolts 6 6, the stems 7 olf said bolts extending` inwardly through contracted `portions 8 of said seats and terminate at their inner ends in grooved heads 9 located Within the transverse recess 3. The bolt-Work is thus mounted Wholly in the block or door 1.

The block or door 1 is made with suitable transverse openings for the accommodation o12 cylinder locks 10-11, -the former being adapted to be operated by a pass key and the latter being adapted for operation by a guard key. The cylinder locks project inwardly beyond the inner face of the block or door 1 and these inwardly projecting portions and the cams 1213 connected with the plugs of said locks7 are housed by a casing 14 secured to the rear face of the block or door. A bolt operating` member 15 is mounted in the casing and its movements are guided by pins 16 and a pin-and-slo-t connection 17 With said casing, said bolt operating member being operable by the cam 12 of the lock 10, and the operation of said lock 10 sufficient to Withdraw the bolt or bolts is normally prevented by the disposition of the cam 13 ofthe lock 11 in the path of the cam 12 of the lock 10. The forwardly projecting` arm 15a of the bolt operating member 15 enters the transverse recess 3 in the block or door 1 and is notched as at 18 to cooperate With the headed inner ends of the bolt or bolts 6, -said bolts being` normally projected by means of springs 19 located Within the' seats t and 5 in the Yblock or door and their outward throw may be limited by shoulders 20.

1t is apparent that Whenthe cam 13 shall have been properly set with the use of a guard key, to permit the full throvv of the cam 12 when operated by a pass key inserted into the plug of the lock 10, the turning of said plug Will operate to move the member 15 and Withdraw the bolts 6*-6 against the resistance of the springs 19. Should an attempt be made to drive one or more of the cylinder locks inwardly, it might be possible to drive the casing 15 from the inner face of the block or door and the member 15a from connection vvith the bolt or bolts, but as the bolts are mounted Wholly in the bloc'k or door, their projecting ends Will remain engaged With the keeper or keepers carried by the box and cannot be reached to Withdraw them by a picking implement.

Instead of employing cylindrical bolts and providing similarly shaped seats in the door for the accommodation of such bolts, the latter may have rectangular or other angulll) lar cross-section as indicated at 6a, Figures l and 5, and the door made with seats 4 and 5a, angular in cross-section, for such bolts. The angular seats may be made the full thickness of the bolt in depth or the` bolts might be let into the door only a sufficinet depth to be properly guided. ln;

either case the bolts would be housed in the door and held in place by a cover or cap 2l secured to the door separately from the casing la. In `the construction shown in Figures 4 and 5, the bolts are made with sockets 2:2 in which springs 23 are seated7 said springs also having seats 24 in one wall of the transverse recess 3.

Having fully described my invention what I claim as new and desire to secure by Letters-Patent, is:

l. A lock structure for a safe deposit box, including a. metal block constituting a door for the box, a spring-projected bolt carried by the Iblock normally to engage in a keeper when the door is closed, lock means carried by the block for retracting the bolt, and actuating means between the lock rmeans and boltvand detachably connected with the latter, said actuating means being freely movable with said lock means, whereby forcible driving of the lock means may permit de tachment of the bolt actuating means from the bolt.

2. A lock structure for a safe deposit box, including a block constituting a doorl for the boX, said block havingv a bore, a bolt housed in said bore and freely movable therein and `adapted to project beyond the same to engage a keeper, a cylinder lock structure carried by said block, and an actuatingmember cooperable at one end with the rotatable memberl of said cylinder lock, the other end of said actuating member being detachably` connected with said bolt7 whereby forcing of the lock will cause the actuating member to move with it and become detached from the bolt.

3. The combination of a block constituting a door and having a rbolt seat, a spring projected bolt mounted in said seat and constituting normal securing means for the door, a cylinder lock carried by the door and projecting inwardly beyond the same, a case or housing secured to the inner face of the door, and a bolt operating member operable by said cylinder lock and detachably connected with-said' bolt, whereby driving of the lock may -dislodge the case or housing and cause detachment of said operating member` from the bolt without retracting the latter.

4:.v The combination of a metal block con-i stitutinga door and having bolt seats at one end portion thereof and a recess with which said bolt seats communicate, a plurality of spring projected bolts mounted in said seats and having parts entering said recess, said bolts being operablenormally to lock the door, a cylinder lock carried by the door and projecting inwardly beyond same, a casing secured to the inner face of the door and housing the projecting inner end portion of the cylinder lock, and a bolt operating member mounted in said casing and operable by the cam of said cylinder lock, said operating member being movable with the casing and a portion of said-bolt operating member entering the recess in the door and detachably connected with the plurality of bolts for retracting them simultaneously to unlock the door, whereby detachmentof saidoperating member from the bolts may be -effected should the lock and casing be forced.

In testimony whereof, I have signed this specification.

SYLVANUS M. ARCHER. 

